Sectional bearing-brass.



H. C. Z!NK.

SECTIONAL BEARING BRASS.

APPLICATION FILED NOV. 3. 1914.

1,1 83.33%, Patented May 16, 1916.

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H. C. ZINK.

SECTIONAL BEARING BRASS.

APPLICATION-FILED NOV.3.1914. I 1 13,33, Patent-ed May 16, 1916.

2 SHEETS-SHEET 2.

JLC, ZBLZZk Witneoow THE COLUMBIA PLANOGRAPH 510-. WASHINGTON. D. c.

HERBERT C. ZINK, OF JACKSON, TENNESSEE.

SECTIONAL BEARING-BRASS.

Specification of Letters Patent.

Patented May 16, 15116.

Application file d November 3, 1914. Serial No. 870,093.

To all whom it may concern:

Be it known that I, HERBERT C. ZINE, a citizen of the United States, residing at Jackson, in the county of Madison and State of Tennessee, have invented certain new and useful Improvements in Sectional Bearing- Brasses; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in bearing brasses for eccentric rods, pitmen andthe like and has for its primary object to provide a sectional bearing block or brass that is of such construction as to enable the renewal of the bearing portions thereof without necessitating the removal of the entire structure from the ends of the crank or eccentric rod.

An object of importance is to provide a sectional brass that is formed in the nature of two blocks arranged to cooperate with one another to form a bearing for a crank pin, said blocks being capable of being removed from theconnecting strap for securing the brass to the eccentric rod or pitman without requiring the removal of the strap and being adjustable so that play caused by {the wearing thereof, the strap may be readily taken up.

An object is to improve devices of the character described so as to render them more reliable and efficient in, operation,

simple as to construction and inexpensive to manufacture.

The above and additional objects are accomplished by such means as are illustrated in the accompanying drawings, described in 1 4c the following specification and then more particularly pointed out in the claims.

With reference to the drawings, wherein I have illustrated the preferred embodiment of my invention as it is reduced to practice, and throughout the several views of which similar reference numerals designate corresponding parts: Figure 1 is a top plan view of my improved bearing, showing it attached, Fig. 2 is an enlarged detail side elevation of my improved bearing brass, showing it detached, Fig. 3 is an enlarged side elevation, Fig. 1 is a transverse vertical sectional view taken through the supporting strap and brass, showing the adjusting means for the bearing brass, Fig. 5 is a detail sectional view of the adjusting member,

and Fig. 6 is an enlarged detail perspective view of a modified form of bearing brass.

Referring to the drawings by characters of reference, the numeral 1 designates as an entirety, a pitman or connecting rod which has secured upon the head thereof by means of bolts 2, an approximately U-shaped securing strap 3 of the ordinary construction. Mounted within the strap 3 is my improved bearing brass, designated 4: as an entirety, which consists of similar sections 5 and 6. Each of these. sections consists of a rectangular block of brass or some other suitable metal that is provided with a semicircular bearing face 7. Secured upon the side faces of the blocks or sections 5 and 6 are arcuate plates or flanges 8 that project at right angles to the blocks and engage upon the outer faces of the strap 3. The bearing brass 4, as a whole. is approximately rectangular so as to be engaged and held by the strap 3, while the flanges or plates 8 are secured upon the sections so that when the sections are fitted together an approximately rectangular flange is formed to engage upon the side faces of the strap 3 and hold the brass securely in the strap.

The outer face of the inner section 5 is i11- clined or tapered, as at 9, and an adjustable wedge-shaped block 10 is interposed between said inclined face 9 and the free ends of the rod 1. An adjusting screw 11 is inserted transversely through the strap 3 and the screw and provides means for moving the screw longitudinallythereon to take up play upon the brass 4. Nuts 12 are turned upon the screw 11. The underface of each section is tapered or inclined, as at 13, and interposed between the inclined faces 13 and the bottom of the strap is a wedge-shaped adjusting plate 14: that has one flat surface which is placed upon the lower part of the strap 3 and its inclined surface disposed in cooperation with the inclined surface 13 of each section. By means of this plate 1 1, vertical play may be taken up.

As a means for securing the sections 5 and 6 in opposite relation to one another and within the strap 3, I provide a plurality, preferably four large bolts 15 that are threaded through the flanges and body portions of the sections and have suitable nuts 16 turned on their threaded terminals. To

remove the sections 5 and 6 it is only necesi consists of the body block formed of brass or some other well known bearing material. Referring particularly to Fig. 6, wherein I have illustrated a modified form of my invention, the numeral 17 designates as an entirety a bearing block that is similar to the blocks in the sections and 6, as to shape but provided in its bearing face 18 with transverse dovetailed grooves 19 and a plurality of pairs of apertures 20 arranged between the grooves. This block 17 is formed of some cheaper metal, preferably steel, and mounted Within the apertures 20 and dovetailed grooves 19 are strips of Babbitt metal or some other suitable bearing metal. It will be readily seen that with the use of this modified block, the bearing strips with the apertures and grooves 20 and 19 may be renewed, when desired.

Should it be desired to remove the sections, the bolts 15 are withdrawn and the flanges 8 removed, thus enabling the sections or block upon which the flanges are secured to be withdrawn from the larger sides of the straps. It is generally the practice to secure the strap 3 with three or more bolts and in ordinary bearing brasses the removal of these bolts is necessary to effect repair on sections of the brass, while in my device it is only necessary to withdraw four bolts to effect removal of the brass. If desired, one of the sections may be removed relative to the other.

In practice, I have found that the form of my invention, illustrated in the drawings and referred to in the above description, as the preferred embodiment, is the most efiicient and practical; yet realizing Copies of this patent may be obtained for five cents each, by addressing the that the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my invention, as set forth.

WVhat is claimed is 1. In a device of the character described the combination with a U-shaped strap secured upon one end of the eccentric rod; of a bearing brass mounted Within said strap, flanges on said bearing brass engaging the sides faces of said strap, bolts inserted through said brass and the flanges, nuts turned on said bolts, said brass comprising similar sections and removable wedge plates interposed between said faces of the bearing, the strap and eccentric rod.

2. The combination with an eccentric rod, and an approximately U-shaped strap secured upon the eccentric rod at one end thereof, of a sectional bearing brass composed of substantially rectangular sections fitted together and arranged within the eccentric strap, and side plates conforming to the configuration of the said sections and covering the side faces of the same, said plates being extended beyond the sections and forming flanges for engaging the eccentric strap.

In testimony whereof I aflix my signature in presence of two witnesses.

HERBERT C. ZINK.

Witnesses:

' J. SGHENKEL,

EVANS T. PURDY.

Commissioner of Patent,

Washington, I). G. 

